Rotary reciprocating valve for internal-combustion engines



2 Sheets-Sheet l June 24, 1930. A. w. KATH I ROTARY RECIPROCATI'NG VALVE FOR INTERNAL COMBUSTION NGNES Filed March 1927 .-H// /1A/// l||||l1|4 c r ---t |--L R a -it 0 MMM/00 rf l CV L P, Z/I /y// f//f Q M z A M R i June 24, 19.30. A1 W, KATH l 1,766,125

ROTARY RECIPROCATING VALVE FOR INTERNAL COMBUSTION ENGINES Filed March '7, 1927 2 Sheets-Sheet 2- 1g f VIn 'operation the. suction stroke of-'the"pis ton B occurs during the registration of thev port I'Withtheinlet port J; This admits the explosive mixturefwhich .during the com;-

imparting the rotative movement of the head tothe sleeve. A cap plate S secured to the i portionI-I2 bythe boltY Sf and engaging the longitudinal orY reciprocating movement. s The Wholearrangement 1s such that the `sleeve lis -free to expand; ver contraetgand' v atthe same timejwill be `driven retatablyand longitudi-v nally byV said head.

pression and'eXplosion strokes' is held in the Valve;Ghamber-theportI'being Qlfsd, YThe l port IV is V,then registered, vvith 'the Yexhaust port K during the scavenging fstroke. Any

f i, Y distortion of the valve or .ivalvefcylinder'due Vto thef V heat Vof co mlbnstiony will Qnot affect Ythe Y V ope ratiiii:as thevalveis permitted to/cony tract k orexpandi as required.V 5 Also the 'val-ve bngonly IOOSQly'CQIHleQted tothe head, H

is Vfreexto adjust-itselfintoj full contact with 'Q25 thevvallsjof thefcylinder@ f Y What Iclaim as my inventiongis i In'an interna l combustion englne,

Y oilbnaton'wth a power eylndermffa valve cylinder`- provided With f A inlet f s and exhaust kports inthe Walls" thereef vandhaving: one end in constantcommunicationrvvith said povver eyllnder, a radiallyexpansiblesleeve valve in Y Ysaid valve@ cylinder having Van opening'for' ,placing theinteriorl offV the sleevev in constant 35 lcommunication Withthe .combustion chamber land port'l means adapted for: alternate reg- 'Y istration with saidinletf'fand exhaust ports and means for moving vsaid sleeve valve to 'f jopenand close'said ports in propersequence.

. f In Van internal? c-ombYustiony engine,`the ;eomblnatlonvvith a'power cylinder, ofa valve i i f Q eylinder i provided Yv vithinlety and rexhffnist 1j Vportsfin the walls thereoffa'ndhavingjonelend '1in constantcommunication@withfsaid'jpower cylnder, ia lon'g-tndii iallyr split radially ex- V74 pansible sleevezzvalve" withinsaidalve cyllinden Said nf-varlv@ having i 011611" end 'for i placing the interior ofthe' valve in; constant y com nninieation withthe ucombustion.chamber Y Vand exhaust .ports vandimeans for moving saidy impart tol said valve a combined rotary and Y Y reciprocating movement such as toalternateflange R vvill couple the head to the sleeve fory ly open and close said inlet and exhaust ports rinthe properV sequence. i

4.. In an internal' eombustiongengine, then` Combination with a vp ovver fcylinder, of a Vto said power cylinder, VYa rotaryr and recipj rocating head jin said valve 'cylinder7 sealing rings for said head, -means'forimparting to said head acombinedrotary and reciprocating* movement, aradially eXpansible split valve cylinder having inlet and kexhaust portsY Y "in the vvalls there'ofandvconnected atone end sleeve valve in said valve cylinder connected tof and movable vvith said head'v having' an vopen end for placingthe interior of the sleeve ,in eonstant communicationvvith theeombustionfchamber and yport means .adaptedlfor alternate registratin with said inlet VYand eX- 'f provided'in its side Walls vvith Ainlet andezr-V Vhaustl ports,l a piston'head located in said valve cylinder and closing the'opposite end* thereof, ya radially v.eXp ansible longitudinally split sleeve valve lWithin said valve `cylinder a andfhavinga rotary driving connection said head permitting freedomJ for radiallex- Y pansion and. slight angular adjnstmentvvith f .Y respect to the axis of said head and sleeves;

' lsaid sleeve having an open end for pla'eingf /theinterior ofthe sleeve in constant communieation with the .combustion chamber and '.being also provided withfport-meansadapted i for'registration with said inlet Yand exhaust ma Ports andmeans forimpartiee t0; Said, Piston heada ,combined yrotaryjand reciprocating .l movement whereby saidvalvesleeve is aotu- 11 Vatedtof open and lClose said inlet and exhaust ports ia 'P'IOrerly time@ Sefiunwndk ls free to'expand' or con raettevgftvthewall Lof Athe valve cylinder.V

' sleevev YX/falve s in 'said j valve ,cylinder l having; 5

an opening *placingl the interior, of the and!exhaust-Porte and. mme for moving said valveJr tol Vopen.v andfleloselsaid1ports in Y Y j: :7.fInlangi ternal'cmbustion e1v1gine, theffy Y i zproper sequence.

, Vvalve in Y'constant 'oommiinication .evvithitheif Vcombustienv ehamber;andport'meansadapt-VVV ed for alternate kregistration'with said'. inlet ,mbnatn Ywith: 12frover-:"Cylnder; Of' a s 1 f 'valve cylinder. .provided with Vinlet .and eX 1 hanst portsfin the'L Wallsither-eof and con-v r Y radially expansible split sleeve valve in said valve cylinder having an opening for placing the interior of the valve Vin constant eoinmunication with the combustion chamber and port means adaptedfor alternate registration with said inlet and exhaust ports, and means for moving said valve Yto open and close said ports in proper sequence.

8. In an internal combustion engine, the combination with a power cylinder, a valve cylinder, a removable head lfor closing said y cylinders having a recessed passageway establishing communication therebetween, said valve cylinder being provided with inlet and Y l. i.

exhaust ports inthe walls'thereof, a vpiston head located in said valve eylinderfand closing one end thereof, sealing rings for said head, a radially expansible split sleevevwithin said valve Cylinder and having an open end for placing the interior ofthesleevey in Constant communication with the combustion chamber, said sleeve also'having a roy tary driving connection with; said head permitting radial expansion and slight angular j adjustment with respect to the aXi's of said head, said sleeve being also provided with port means adapted for registration with said inlet'and exhaust ports, andfmeans for imparting to said piston head a rotary movement whereby said valve sleeve isfaetuated to open and close said inlet andexhaust ports in timedfsequenee, and is free to-eXpand or contract to fit the'walls of the valve cylinder.

In testimony whereof I aiix my signature.

' ALFREDv W. KATI-I. 

